<template>
    <div>
        <!--面包屑导航区域-->
        <el-breadcrumb separator="/">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>商品管理</el-breadcrumb-item>
            <el-breadcrumb-item>添加商品</el-breadcrumb-item>
        </el-breadcrumb>

        <!--卡片视图-->
        <el-card>
            <el-alert
                    title="添加商品信息"
                    type="info" center show-icon :closable="false">
            </el-alert>
            <el-steps :space="200" :active="activeIndex-0" finish-status="success" align-center="">
                <el-step title="基本信息"></el-step>
                <el-step title="商品参数"></el-step>
                <el-step title="商品属性"></el-step>
                <el-step title="商品图片"></el-step>
                <el-step title="商品内容"></el-step>
                <el-step title="完成"></el-step>
            </el-steps>

            <!--tab栏区域-->
            <el-form ref="addFormRef" :model="addForm" label-width="80px">
                <el-tabs  v-model="activeIndex" :tab-position="'left'"
                          label-position="top" :before-leave="beforeLeave" @tab-click="tabClicked">
                    <el-tab-pane label="基本信息" name="0">
                        <el-form-item label="商品名称" prop="goods_name">
                            <el-input v-model="addForm.goods_name"></el-input>
                        </el-form-item>
                        <el-form-item label="商品价格" prop="goods_price">
                            <el-input v-model="addForm.goods_price" type="number"></el-input>
                        </el-form-item>
                        <el-form-item label="商品重量" prop="goods_weight">
                            <el-input v-model="addForm.goods_weight" type="number"></el-input>
                        </el-form-item>
                        <el-form-item label="商品数量" prop="goods_number">
                            <el-input v-model="addForm.goods_number" type="number"></el-input>
                        </el-form-item>
                        <el-form-item label="商品分类" prop="">
                            <el-cascader
                                    v-model="addForm.goods_cat"
                                    :options="cateList"
                                    :props="cateProps" @change="handleChange">
                            </el-cascader>
                        </el-form-item>

                    </el-tab-pane>
                    <el-tab-pane label="商品参数" name="1">
                        <!--渲染列表的Item项-->
                        <el-form-item :label="item.attr_name" v-for="item in manyTableData" :key="item.attr_id">
                            <el-checkbox-group v-model="item.attr_vals">
                                <el-checkbox :label="cb" v-for="(cb,i) in item.attr_vals" :key="i" border></el-checkbox>

                            </el-checkbox-group>
                        </el-form-item>
                    </el-tab-pane>
                    <el-tab-pane label="商品属性" name="2">
                        <el-form-item :label="item.attr_name" v-for="item in onlyTableData" :key="item.attr_id">
                            <el-input v-model="item.attr_vals"></el-input>
                        </el-form-item>
                    </el-tab-pane>
                    <el-tab-pane label="商品图片" name="3">
                        <!--action 图片要上传到的接口地址-->
                        <el-upload
                                :action="uploadUrl"
                                :on-preview="handlePreview"
                                :on-remove="handleRemove"
                                list-type="picture"
                                :headers="headerObj"
                                :on-success="handleSuccess">
                            <el-button size="small" type="primary">点击上传</el-button>
                        </el-upload>
                    </el-tab-pane>
                    <el-tab-pane label="商品内容" name="4">
                        <!--富文本编辑器组件-->
                        <quill-editor
                                v-model="addForm.goods_intro"
                                ref="myQuillEditor"
                                :options="editorOption"
                                @focus="onEditorFocus($event)"
                                @blur="onEditorBlur($event)"
                                @change="onEditorChange($event)" >
                        </quill-editor>
                        <el-button type="primary" class="btn-add" @click="add()">
                            添加商品
                        </el-button>
                    </el-tab-pane>
                </el-tabs>
            </el-form>

            <el-dialog
                    title="图片预览"
                    :visible.sync="previewVisible"
                    width="30%">
                <img :src="previewPath" alt="" class="previewImag">
            </el-dialog>



        </el-card>
    </div>
</template>

<script>
    export default {
        data(){
            return {
                activeIndex:'0',
                addForm:{
                    goods_name:'',
                    goods_price:0,
                    goods_weight:0,
                    goods_number:0,
                    //商品所属的分类数组
                    goods_cat:[],
                    //图片的数组
                    pics:[],
                    goods_intro:'',
                    attrs:[]

                },
                //商品列表数据
                cateList:[],
                cateProps:{
                    label:'cat_name',
                    value:'cat_id',
                    children:'children'

                },
                //动态参数列表
                manyTableData:[],
                onlyTableData:[],
                //上传图片的url地址
                uploadUrl:'http://timemeetyou.com:8889/api/private/v1/upload',
                headerObj:{
                    Authorization:window.sessionStorage.getItem('token')
                },
                previewPath:'',
                previewVisible:false,
                editorOption:{},


            }
        },
        created(){
            this.getCateList();
        },
        methods:{
            //获取商品分类数据
            async getCateList(){
                const {data:res} = await this.$http.get('categories');

                if (res.meta.status !==200){
                    return this.$message.error('获取商品分类失败!')
                }

                 console.log(res.data);
                this.cateList = res.data;
            },
            handleChange(){
                // console.log(this.addForm.goods_cat);
                if (this.addForm.goods_cat.length !==3 ){
                    this.addForm.goods_cat = []
                }
            },
            beforeLeave(activeName,oldName){

                if(oldName === '0' && this.addForm.goods_cat.length !== 3){
                    this.$message.error('请选择商品分类！')
                    return false;
                }
            },
            async tabClicked(){
                if (this.activeIndex === '1'){
                    const {data:res} = await this.$http.get(`categories/${this.cateId}/attributes`,{params:{sel:'many'}});

                    if (res.meta.status !==200){
                        return this.$message.error('获取商品分类失败')
                    }

                   res.data.forEach(item=>{
                        item.attr_vals = item.attr_vals.length=== 0 ? [] : item.attr_vals.split(' ')
                   })
                    this.manyTableData = res.data;
                    console.log(this.manyTableData);

                }else if(this.activeIndex === '2'){
                    const {data:res} = await this.$http.get(`categories/${this.cateId}/attributes`,{params:{sel:'only'}});

                    if (res.meta.status !==200){
                        return this.$message.error('获取商品分类失败')
                    }

                    this.onlyTableData = res.data;

                }
            },
            //处理图片上传事件
            handlePreview(file){
                this.previewPath = file.response.data.url;
                this.previewVisible = true;
            },
            //处理移除图片的函数
            handleRemove(file){

                const filePath = file.response.data.tmp_path;
                const i = this.addForm.pics.findIndex(x => x.pic === filePath )
                this.addForm.pics.splice(i,1);
                console.log(this.addForm);

            },
            //监听图片上传成功的事件
            handleSuccess(resp){
               // console.log(resp);
                const picInfo = {pic:resp.data.tmp_path}
                this.addForm.pics.push(picInfo);
              //  console.log(this.addForm);
            },
            onEditorFocus(e){
                console.log(e);
            },
            onEditorBlur(e){
                console.log(e);
            },
            onEditorChange(e){
                console.log(e);
            },
            async add(){
                console.log(this.addForm);
                this.addForm.goods_cat =  this.addForm.goods_cat.join(',');

                this.manyTableData.forEach(item=>{
                    const newInfo = {attr_id:item.attr_id,attr_value:item.attr_vals.join(',')}
                    this.addForm.attrs.push(newInfo);
                })

                this.onlyTableData.forEach(item=>{
                    const newInfo = {
                        attr_id:item.attr_id,
                        attr_value:item.attr_vals
                    }
                    this.addForm.attrs.push(newInfo);
                })

                const {data:res} = await this.$http.post('goods',this.addForm)

                if (res.meta.status !== 201){
                    return this.$message.error('添加商品失败！')
                }

                this.$message.success('添加商品成功！')
                 this.$router.push('/goods');
            }


        },
        computed:{
            cateId(){
                if (this.addForm.goods_cat.length == 3){
                    return this.addForm.goods_cat[2]
                }

                return null;
            }
        }
    }
</script>

<style scoped>
.el-checkbox{
    margin: 0 8px 0 0 !important;
}
.previewImag{
    width: 100%;
}
</style>